Smoking behaviour and dietary restraint in young adolescent women: the role of physical self-perceptions.

OBJECTIVE: To investigate the relationship among BMI, smoking consumption, dietary restraint, smoking to control weight, physical self-perception and self-esteem in young female adolescents. METHODS: 702 grade 9 students (14-15 yrs old) completed self-reported validated measures in classroom settings. RESULTS: 26.7% of students had smoked in the last 30 days. Cigarette consumption was low with only 13% smoking one or more cigarettes a day. MANOVA revealed smokers had higher dietary restraint and lower perceptions of physical appearance, conditioning, and self-esteem. A similar pattern emerged for those girls classified as using smoking to control weight. Multiple regression found dietary restraint was predicted by higher BMI, and lower body appearance and self-esteem. CONCLUSIONS: The data provided converging evidence that girls with low self-perceptions are more likely to engage in health-compromising behaviours. Smoking behaviours and dietary restraint were also linked. However, the small effect sizes for smoking behaviours warrants caution.     

Relationship among body image,exercise behavior,and exercise dependence symptoms

OBJECTIVE: The purpose of the present study was to examine the relationship among body image, exercise behavior, body mass index (BMI), and primary exercise dependence symptoms in physically active individuals. METHOD: Male and female university students (N = 474) completed self-report measures of exercise behavior, height, weight, exercise dependence symptoms, social physique anxiety, and body satisfaction. RESULTS: Hierarchical multiple regressions with forced block entry by gender were conducted to examine the effects of exercise behavior, BMI, and exercise dependence symptoms on body satisfaction and social physique anxiety. For females, BMI was the strongest positive predictor of body dissatisfaction and social physique anxiety. For males, exercise behavior was the strongest negative predictor of body dissatisfaction and social physique anxiety. DISCUSSION: It was concluded that after controlling for the effects of BMI and exercise behavior, primary exercise dependence symptoms were not strong predictors on body image, especially for females.     

Ethnic differences in the prediction of eating and body image disturbances among female adolescent psychiatric inpatients

OBJECTIVE: The current study examined predictors of eating and body image disturbances in psychiatrically hospitalized female adolescents and investigated whether the predictors differ by ethnicity. METHOD: Participants were 427 (320 Caucasian, 53 Latina, 54 African American) female adolescent psychiatric inpatients. Predictors of eating disorder features (dietary restraint, binge eating, and purging) and body image dissatisfaction (BID) were tested separately for the three ethnic groups. In addition to the eating and BID variables, the following predictor variables were considered: depression, anxiety, impulsivity, negative self-esteem, peer insecurity, and abuse. RESULTS: Caucasians reported significantly higher levels of dietary restraint and BID than Latinas and African Americans, whereas reports of binge eating did not differ by ethnicity. Regression analyses revealed that the predictor variables accounted for significant and substantial amounts of the variance in the four eating and body image domains. Different psychological and social variables predicted eating disorder symptoms and BID across ethnic groups. DISCUSSION: These findings suggest, for psychiatrically hospitalized adolescent females, that different patterns of factors may contribute to the maintenance of eating and body image disturbances across ethnic groups. Future research testing models of the etiology or maintenance of these disturbances needs to include ethnicity to ascertain whether the hypothesized components operate differently by ethnicity.     

Weight gain, dietary restraint, and disordered eating in the freshman year of college

OBJECTIVE: The aims of the study were to assess whether women during the first year of college experience (1) significant weight gain; (2) a prospective relation between dietary restraint and weight gain; (3) an increase in disordered eating; and (4) a prospective relation between dietary restraint or concern about the Freshmen 15 (i.e., weight gain of 15 lbs during the freshman year of college) and disordered eating. METHOD: Participants were 336 female students in their first year of college who completed questionnaire measures of Body Mass Index (BMI), eating disorder pathology, dietary restraint, body image, and self-esteem. RESULTS: Participants' mean weight gain was approximately 3 lbs (1.5 kg), and among those who gained weight, the mean gain was 7.32 lbs (3.3 kg). Dietary restraint in September did not predict weight change in April, but participants who lost weight reported significantly greater dietary restraint than those participants who gained weight. Eating disorder symptoms increased significantly from September to April. Dietary restraint, concern about the "Freshman 15", and self-esteem in September uniquely predicted EDE-Q Weight and Shape Concern subscale scores in April. DISCUSSION: Female students in their first year of college gain a small but significant amount of weight, and weight gain was mostly unrelated to dietary restraint. Disordered eating increases during the first year of college and, is predicted by prospective dietary restraint and concerns about weight gain.     

Change in self-esteem,self-efficacy and the mood dimensions of depression as potential mediators of the physical activity and depression relationship: Exploring the temporal relation of change

ObjectivesPhysical activity has been found to alleviate depression, but little is known about the mechanisms of change. This study assessed whether depression and hypothesised mechanisms – self-esteem, physical self-perceptions, self-efficacy, positive affect (PA) and negative affect (NA) – changed over time among depressed individuals who increased their physical activity. It also assessed the temporal relation of change.DesignLongitudinal, within-subjects design.MethodThirty-nine individuals with elevated symptoms of depression increased their physical activity for an eight-week period. Measures of depression and the hypothesised mechanisms were taken at baseline, week one, week three and week eight.ResultsThere were statistically significant improvements in depression and all the potential mechanisms between baseline and week eight. An initial reduction in depression was observed at week one, with most of the reduction occurring by week three. Initial improvement in PA, NA and self-efficacy also occurred at week one, while initial improvement in self-esteem and self-perceptions occurred at week three. Further improvement in self-esteem and some of the self-perception variables was observed after there was no further significant change in depression. There were larger changes in PA than the other measured mechanisms at weeks one and three.ConclusionsChange in PA, NA and self-efficacy present stronger candidate mechanisms than change in self-esteem and self-perceptions for mediating change in depression, at least in the early stages of increased activity. An increase in PA may be especially important. However, a causal role for the potential mechanisms cannot be determined from this study.     

Biological, psychological, and sociocultural correlates of body change strategies and eating problems in adolescent boys and girls

The present study examines correlates of body change strategies and eating problems in youths. A large sample of adolescents aged 12 to 16 years (N = 307) was asked to complete a set of questionnaires, which measured biological (age, pubertal status, and body mass index [BMI]), psychological (self-esteem, body dissatisfaction, body importance, and body comparison), and sociocultural variables (influence of media, parents, and peers), as well as body change strategies and disturbed eating attitudes and behaviors. Results showed that boys generally try to become more muscular, whereas girls attempt to lose weight. Further, correlational and regression analyses demonstrated that biological, psychological, and sociocultural influences made unique and significant contributions to various body image and body change/eating problems variables. Finally, hierarchical regression analyses yielded theoretically meaningful models for the main body change strategies in boys and girls. In these models, BMI, self-esteem, and sociocultural influences turned out to be significant predictor variables, while body-image-related factors, and in particular body comparison (i.e., the tendency to compare one's body with that of others), partially or fully mediated the influence of some predictor variables.     

Body Composition Correlates of Weight Dissatisfaction and Dietary Restraint in Young Women

Previous research found that when Body Mass Index (BMI) was statistically controlled in a multiple regression model, the percentage of body fat accounted for no additional variance in dietary restraint scores among women although, on its own, it was a significant predictor of this variable. These results imply that anatomical factors, besides fatness, influence dieting behaviour. The present study was designed to compare the relative influence on dietary restraint and weight dissatisfaction, of three body composition measures, each of which contributes in a different way to subjective impressions of body size (viz. BMI, body fat content, and skeletal frame size). Measures of emotional reactivity ('neuroticism'), body dissatisfaction, and body focus were also included in the regression model. Results indicated that these psychological variables were strongly and positively related to restraint. Frame size was also a significant predictor of restraint and weight dissatisfaction. In fact, when frame size was controlled in the regression model, neither percentage of body fat nor BMI were able to explain any additional variance in restraint scores. These findings indicate that weight concerns and dieting behaviour are influenced, at least among young women, more by the size of their skeletal structure than their degree of adiposity. The irony of these findings is obvious and disheartening. An anatomical feature which is essentially resistant to change by dieting or exercise appears to be a primary influence in women's weight dissatisfaction and their tendency to diet. It is acknowledged, however, that this relationship may not obtain among very obese women.     

Fear of negative appearance evaluation: development and evaluation of a new construct for risk factor work in the field of eating disorders

The psychometric properties and correlates of a measure designed to assess fear of negative appearance evaluation are presented. In Study 1, 165 college females completed the Fear of Negative Appearance Evaluation Scale [FNAES; Thomas, C.M., Keery, H., Williams, R., & Thompson, J. K. (1998, November). The Fear of Negative Appearance Evaluation Scale: Development and preliminary validation. Paper presented at the annual meeting of the Association for the Advancement of Behavior Therapy, Washington, DC] along with measures of body image, eating disturbance, and depression. Results replicated previous analyses indicating the presence of a single factor, good internal consistency, and significant association with measures of body image and eating disturbance. Additionally, the FNAES accounted for unique variance beyond that explained by general fear of negative evaluation, and other measures of body image and eating disturbance, in the prediction of body shape dysphoria, dietary restraint, and trait anxiety. Study 2 further examined the validity of the FNAES, finding it to correlate significantly with measures of social physique anxiety, body image, eating attitude, and mood. The FNAES did not significantly correlate with body mass index (BMI). Regression analyses found the FNAES to predict levels of body image, eating attitude, and mood beyond variance explained by social physique anxiety. The FNAES appears to measure a conceptually unique aspect of body image that has not been indexed by previous measures and may serve a useful role in risk factor and preventive work.     

Determinants of overweight in a cohort of Dutch children

BACKGROUND: To improve the effective prevention and treatment of obesity, it is important to focus on body weight (BW) development and its determinants during childhood. OBJECTIVE: The aim of the present study was to investigate the effects of early development, parental and genetic variables, and behavioral determinants on overweight at 12 y. DESIGN: In a Dutch cohort of 105 children, anthropometric measurements were conducted from birth until age 7 y. At age 12 y, anthropometric measurements were obtained again, as were measurements of body composition, leptin concentration, 3 polymorphisms, and physical activity, and the Three-Factor Eating Questionnaire was conducted. In addition, parental body mass indexes (BMIs, in kg/m2) and Three-Factor Eating Questionnaire scores were determined. RESULTS: The children's mean (+/-SD) BMI at 12 y was 19.0 +/- 2.6, and 15.2% were classified as overweight. From the first year of life, BMI tracked significantly with BMI at age 12 y (r = 0.24, P < 0.05). Linear regression analyses showed that a rapid increase in BW during the first year of life, a high BMI of the father, and a high dietary restraint score of the mother were significantly associated with overweight at age 12 y (P < 0.05). No significant genetic relation was observed. In addition, overweight was positively associated with dietary restraint of the child, and percentage body fat was negatively associated with the child's activity score (P < 0.05). CONCLUSIONS: In this homogeneous cohort of normal-weight to moderately overweight children, tracking of BMI during childhood took place from the first year of life. Overweight at age 12 y was predicted by an early rapid increase in BW and parental influences. Overweight during childhood may be maintained or even promoted by a high dietary restraint score and low physical activity.     

Eating behavior correlates of adult weight gain and obesity in healthy women aged 55-65 y

BACKGROUND: The specific underlying causes of adult weight gain remain uncertain. OBJECTIVE: The objective was to determine the association of 3 measures of eating behavior with weight gain and body mass index (BMI; in kg/m(2)) in adults. DESIGN: Current dietary restraint, disinhibition, and hunger were assessed with the use of the Eating Inventory in 638 healthy, nonsmoking women aged 55-65 y. In addition, subjects reported their current weight and height, their weight for 6 age intervals, and changes in voluntary dietary energy restriction over the past 10 y. Current weight and height were validated in 10% of subjects. RESULTS: Current disinhibition strongly predicted weight gain and current BMI (partial r = 0.27 and 0.34, respectively, both P < 0.001). Neither restraint nor hunger was a significant independent predictor of either variable, but the positive associations between disinhibition and both weight gain and BMI were attenuated by restraint (P = 0.016 and 0.010, respectively, after adjustment for confounding variables). In the subpopulation of women who reported a stable level of voluntary dietary energy restriction, disinhibition also strongly predicted weight gain and higher BMI, and restraint was negatively associated with weight gain (partial r = -0.17, P = 0.019). CONCLUSIONS: Higher disinhibition is strongly associated with greater adult weight gain and higher current BMI, and dietary restraint may attenuate this association when disinhibition is high. These findings suggest that eating behavior has an important role in the prevention of adult-onset obesity and that further studies are warranted.     

Body Dissatisfaction,Dietary Restraint,Depression, and Weight Status in Adolescents

BACKGROUND: Adolescence may be a crucial period for developing obesity and associated mental health problems. This study examined the relationship of weight status on body image, eating behavior, and depressive symptoms in youth. METHODS: A survey was conducted on 1490 youth attending grades 7–12. Participants completed questionnaires on body image, eating behavior, and mood and were measured for height and weight to calculate body mass index (BMI). Weight classification was based on the International Obesity Task Force guidelines, whereby youth at or above the 95th BMI percentile for age and sex were classified as obese, those between 85th and 94th BMI percentile as overweight, and those between 5th and 84th BMI percentile as normal weight. Several multivariate analyses of variance (MANOVAs) were conducted to examine these relationships. RESULTS: Clear relationships emerged between body image and weight classification. Obese youth reported higher body dissatisfaction than overweight youth, who reported more body dissatisfaction than normal weight youth. These effects were independent of age and gender. A relationship was also found for dietary restraint and weight status whereby higher restraint scores were associated with greater adiposity. Similarly, obese youth reported greater depressive symptoms, including anhedonia, negative self-esteem, and higher overall depression scores compared with overweight and normal-weight youth. CONCLUSIONS: Psychopathology in obese youth is well known in clinical samples but this study suggests that obese youth in the community may be at increased risk of developing body dissatisfaction, dietary restraint, and depressive symptoms compared with overweight or normal weight youth.     

An examination of eating attitudes and physical activity levels of Turkish university students with regard to self-presentational concern

This study aimed to examine eating attitudes and physical activity level of young women and men university students with regard to social physique anxiety level. 482 university students participated in this study voluntarily. “Eating Attitude Test (EAT-40)”, “Social Physique Anxiety Scale” and “Physical Activity Assessment Questionnaire” were used to assess the eating attitude, social physique anxiety and physical activity level of participants, respectively. Women and men participants in this study were assigned to high (HSPA) and low (LSPA) social physique anxiety groups with respect to their median scores. Men had favorable eating attitudes and higher physical activity level than women. In addition, participants in the HSPA group had unfavorable eating attitudes and higher physical activity MET values than participants in the LSPA group. On the other hand, group × gender interaction was only significant for the eating attitudes scores but, not for physical activity level. Women in the HSPA group scored higher on the EAT-40 than men in HSPA and women and men in the LSPA groups.     

Weight concerns, body image, depression and anxiety in Swedish adolescents

OBJECTIVES: To assess weight problems and correlates in respect of body image, depression, anxiety and demographic background factors. METHOD: 405 Swedish adolescents were assessed in respect of Body Mass Index (BMI), biographical data, the Body Esteem Scale for Adolescents and Adults (BESAA), the Multidimensional Anxiety Scale for Children (MASC) and the Children's Depression Inventory (CDI). RESULTS: Boys were in the positive and girls in the negative direction from ideal BMI for age and gender. Girls and boys differed in respect of CDI, MASC and of BESAA where girls generally were shifted in the "pathological" direction. DISCUSSION: The adolescents' own positive attitude to slimness, negative mood (girls), and anxiety symptoms that reflect social fears (boys) and physical aspects of anxiety (girls and boys) were important correlates of lower BMI than ideal. Adolescent cultural norms need to be addressed in preventive work. However, in girls' separation anxiety might be a protective factor against underweight. In girls, overweight seems to be associated with negative self-esteem.     

Dietary restraint and self-esteem as predictors of weight gain over an 8-year time period

The study aimed to assess dietary restraint and self-esteem as predictors of weight change over a time period of 8 years. Questionnaires assessing self-reported weight, body dissatisfaction, dietary restraint, and self-esteem were completed by 77 young adults (19 men and 58 women) on two occasions separated by 8 years. On average, participants gained approximately 6 kg over the 8 years. Although neither dietary restraint nor self-esteem predicted weight change on its own, their interaction did. Furthermore, the relationship between restraint and weight change was best described as curvilinear. It was concluded that dietary restraint is predictive of subsequent weight gain, but in a more complex way than previously assumed.     

Childhood psychological, physical, and sexual maltreatment in outpatients with binge eating disorder: frequency and associations with gender, obesity, and eating-related psychopathology

OBJECTIVE: To examine rates of reported childhood maltreatment in binge eating disorder (BED), and to explore associations with obesity, gender, eating disorder features, and associated functioning. RESEARCH METHODS AND PROCEDURES: Subjects were 145 consecutive outpatients with BED as defined in the Diagnostic and Statistical Manual of Mental Disorders, 4(th) edition. Subjects were interviewed and they completed questionnaires to assess eating disorder features and functioning. The Childhood Trauma Questionnaire was given to assess childhood maltreatment in five domains (emotional abuse, physical abuse, sexual abuse, emotional neglect, and physical neglect). RESULTS: A total of 83% of BED patients reported some form of childhood maltreatment. A total of 59% of BED patients reported emotional abuse, 36% reported physical abuse, 30% reported sexual abuse, 69% reported emotional neglect, and 49% reported physical neglect. There were no differences in the distribution of any form of childhood maltreatment by gender or by obesity status. The different forms of maltreatment were not associated with variability in current body mass index, binge eating, or in the attitudinal features of eating disorders. Only one of the five forms of maltreatment (physical neglect) was associated with dietary restraint in women. Emotional abuse was significantly associated with greater body dissatisfaction, higher depression, and lower self-esteem in men and women and sexual abuse was associated with greater body dissatisfaction in men. The different forms of maltreatment were unrelated to the age at onset of overweight, dieting, or binge eating. DISCUSSION: BED outpatients reported a wide range of childhood experiences of maltreatment that do not differ by gender or obesity status. Different forms of maltreatment were not associated with the onset of overweight, dieting, or binge eating, or with variability in current body mass index or eating disorder features (except for one association between physical neglect and dietary restraint). Reports of emotional abuse were associated with greater body dissatisfaction and depression and lower self-esteem in men and women and sexual abuse with greater body dissatisfaction in men.     

The association between worksite social support, diet, physical activity and body mass index

ObjectiveSocial support may be associated with improved diet and physical activity—determinants of overweight and obesity. Wellness programs increasingly target worksites. The aim was to evaluate the relationship between worksite social support and dietary behaviors, physical activity, and body mass index (BMI).MethodBaseline data were obtained on 2878 employees from 2005 to 2007 from 34 worksites through Promoting Activity and Changes in Eating, a group-randomized weight reduction intervention in Greater Seattle. Worksite social support, diet, physical activity, and BMI were assessed via self-reported questionnaire. Principal component analysis was applied to workgroup questions. To adjust for design effects, random effects models were employed.ResultsNo associations were found with worksite social support and BMI, or with many obesogenic behaviors. However, individuals with higher worksite social support had 14.3% higher (95% CI: 5.6%–23.7%) mean physical activity score and 4% higher (95% CI: 1%–7%) mean fruit and vegetable intake compared to individuals with one-unit lower support.ConclusionOur findings do not support a conclusive relationship between higher worksite social support and obesogenic behaviors, with the exception of physical activity and fruit and vegetable intake. Future studies are needed to confirm these relationships and evaluate how worksite social support impacts trial outcomes.     

Flexible vs. Rigid Dieting Strategies: Relationship with Adverse Behavioral Outcomes

This study was designed to test the hypothesis that different types of dieting strategies are associated with different behavioral outcomes by investigating the relationship of dieting behaviors with overeating, body mass and mood. A sample of 223 adult male and female participants from a large community were studied. Only a small proportion of the sample (18%) was seeking weight loss treatment, though almost half (49.3%) of the subjects were significantly overweight (body mass index, BMI>30). Subjects were administered questionnaires measuring dietary restraint, overeating, depression and anxiety. Measurements of height and weight were also obtained in order to calculate BMI. Canonical correlation was performed to evaluate the relationship of dietary restraint variables with overeating variables, body mass, depression and anxiety. The strongest canonical correlation (r=0.65) was the relationship between flexible dieting and the absence of overeating, lower body mass and lower levels of depression and anxiety. The second strongest canonical correlation (r=0.59) associated calorie counting and conscious dieting with overeating while alone and increased body mass. The third canonical correlation (r=0.57) found a relationship between low dietary restraint and binge eating. The results support the hypothesis that overeating and other adverse behaviors and moods are associated with the presence or absence of certain types of dieting behavior.     

Understanding the link between body checking cognitions and behaviors: the role of social physique anxiety

OBJECTIVE: Recent evidence supports the utility of a model where body checking cognitions and behaviors influence disordered eating. It can be hypothesized that emotional states might explain the links between checking cognitions and behaviors. Social physique anxiety is associated with disordered eating and is an important form of affect to consider in this model. This study aims to examine the associations between these variables, testing a mediational model of the role of social physique anxiety in the links between body checking cognitions and behaviors. METHOD: A nonclinical group of 292 women completed well-validated measures of social physique anxiety, body checking cognitions, and body checking behaviors. RESULTS: The data were compatible with a model where social physique anxiety partially mediates the relationship between body checking cognitions and body checking behavior. The combination of cognitions and affect explained a significant proportion of variance in body checking behavior. CONCLUSION: Incorporating affect allows for a more comprehensive model of understanding the antecedent factors of body checking behaviors. The impact of body checking cognitions on physique anxiety might serve to drive the repetitive body checking behaviors, potentially contributing to disordered eating. Interventions for body checking might be more effective if they included an affective treatment component.     

Eating style, overeating and weight gain. A prospective 2-year follow-up study in a representative Dutch sample

This study examined which individuals are particularly at risk for developing overweight and whether there are behavioral lifestyle factors that may attenuate this susceptibility. A prospective study with a 2-year follow-up was conducted in a sample representative of the general population of The Netherlands (n=590). Body mass change (self-reported) was assessed in relation to overeating and change in physical activity (both self-reported), dietary restraint, emotional eating, and external eating, as assessed by the Dutch Eating Behavior Questionnaire. There was a consistent main (suppressive) effect of increased physical activity on BMI change. Only emotional eating and external eating moderated the relation between overeating and body mass change. However, the interaction effect of external eating became borderline significant with Yes or No meaningful weight gain (weight gain >3%) as dependent variable. It was concluded that whilst increasing physical activity may attenuate weight gain, particularly high emotional eaters seem at risk for developing overweight, because overconsumption seems to be more strongly related to weight gain in people with high degrees of emotional eating.     

Leisure time physical activity does not moderate the relationship between stress and psychological functioning in Norwegian adolescents

A number of variables have been shown to moderate the relationship between stress and psychological functioning. Physical activity (PA) has the potential to influence some of these variables but there is mixed evidence that PA can moderate the stress and mental well-being relationship among adolescents. The aim of this cross-sectional study was to investigate if leisure time physical activity moderates the relationship between stress and psychological functioning (depression, anxiety, self-esteem) among Norwegian adolescents 13-18 years old (n = 1508). The data were analysed using analysis of variance (MANOVA and MANCOVA). In preliminary analyses, girls reported higher scores of depression and anxiety and boys scored higher on self-esteem. Interaction effects of gender by age were found on all outcome variables. Stress was positively associated with depression and anxiety, and negatively associated with self-esteem. Higher frequency of leisure time physical activity was weakly associated with lower levels of depression and anxiety, and higher levels of self-esteem. The primary analyses revealed no support for leisure time physical activity as a moderator of the association between stress and psychological functioning. The differences between the present study and similar ones were discussed.